PRIME Observation Log 2025/06/16

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Raw Log (Time is in SA time)
Ramp Log (Time is in UT)
CCMain Error Log (Time is in SA time)
Observation Log (Time is in UT)

Date: 2025/06/16
Local observer:
Remote observer:
Weather:
Comment:
Detector Temperature: 114.00002 +- 0.00078 K
ImageAcquisitionErrors occurred 0 times

Expected Time
Twilight Flat Time
(Sun altitude = -5.5°)
Evening 18:02:57
Morning 07:12:19
Science Observation
(Sun altitude < -10°)
Start 18:26:05
End 06:49:11
Bulge Observation
(Sun alt. < -10° & GB alt. > 22°)
Start 18:57:19
End 06:26:37


Observed Fraction
Actually Observed Time
(hh:mm:ss) 		Expected Observation Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Total Time 09:27:14 12:23:06 0.763
GB Time 09:27:14 11:29:17 0.823
Non-GB Time 00:00:00 00:53:48 0.000


Institute Statistics
Institute Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB 5288 04:12:03 09:27:14 0.444


Type Statistics
Type Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
Bulge 5092 04:02:43 09:03:19 0.447
SKY 196 00:09:20 00:23:54 0.391


Target Statistics
Target Total Frame Total Exposure
(hh:mm:ss) 		Total Observation
(hh:mm:ss) 		Efficiency
(exp./obs.)
GB82_test OJ 56 00:02:40 00:23:06 0.116
GB82_dither OJ 48 00:02:17 00:04:32 0.503
GB99_dither OJ 48 00:02:17 00:04:35 0.498
GB116_dither OJ 48 00:02:17 00:04:32 0.503
GB115_dither OJ 48 00:02:17 00:04:35 0.498
GB98_dither OJ 48 00:02:17 00:04:35 0.498
GB81_dither OJ 48 00:02:17 00:04:55 0.465
GB80_dither OJ 48 00:02:17 00:04:35 0.498
GB79_dither OJ 48 00:02:17 00:04:35 0.498
GB78_dither OJ 48 00:02:17 00:04:32 0.503
GB77_dither OJ 48 00:02:17 00:04:32 0.503
GB76_dither OJ 48 00:02:17 00:04:38 0.493
GB75_dither OJ 48 00:02:17 00:04:35 0.498
GB74_dither OJ 48 00:02:17 00:04:43 0.484
GCsky 192 00:09:09 00:22:08 0.413
GCsky_test 4 00:00:11 00:01:46 0.107
GB81_test OH 16 00:00:45 00:05:48 0.131
GB81_dither OH 24 00:01:08 00:02:21 0.484
GB98_dither OH 24 00:01:08 00:02:19 0.493
GB115_dither OH 24 00:01:08 00:02:33 0.448
GB80_dither OH 24 00:01:08 00:02:16 0.503
GB97_dither OH 24 00:01:08 00:02:19 0.493
GB114_dither OH 24 00:01:08 00:02:33 0.448
GB76_dither OH 456 00:21:44 00:44:43 0.486
GB77_dither OH 432 00:20:35 00:42:32 0.484
GB78_dither OH 452 00:21:32 00:58:10 0.370
GB94_dither OH 432 00:20:35 00:41:58 0.491
GB111_dither OH 432 00:20:35 00:42:24 0.486
GB110_dither OH 432 00:20:35 00:42:38 0.483
GB109_dither OH 240 00:11:26 00:23:31 0.486
GB92_dither OH 144 00:06:51 00:14:11 0.484
GB93_dither OH 144 00:06:51 00:14:25 0.476
GB75_dither OH 240 00:11:26 00:24:04 0.475
GB112_dither OH 192 00:09:09 00:18:44 0.488
GB79_dither OH 192 00:09:09 00:24:40 0.371
GB60_dither OH 96 00:04:34 00:09:19 0.491
GB95_dither OH 96 00:04:34 00:09:33 0.479
GB113_dither OH 96 00:04:34 00:09:30 0.481
GB78_test OH 4 00:00:11 00:00:53 0.214
GB74_dither OH 24 00:01:08 00:02:24 0.474
GB91_dither OH 24 00:01:08 00:02:27 0.465
GB108_dither OH 24 00:01:08 00:02:19 0.493
GB107_dither OH 24 00:01:08 00:02:19 0.493
GB106_dither OH 24 00:01:08 00:02:24 0.474
GB89_dither OH 24 00:01:08 00:02:21 0.484
GB72_dither OH 24 00:01:08 00:03:43 0.307
GB83_test OH 4 00:00:11 00:00:36 0.311










Stats so far in 2025
Monthly observed fraction so far in 2025
Month Observed Time
(hh:mm:ss) 		Expected Time
(hh:mm:ss) 		Observed Fraction
(observed/expected)
Jan 103:35:29 259:42:08 0.399
Feb 53:54:42 259:20:18 0.208
Mar 158:57:47 319:07:20 0.498
Apr 161:02:39 338:08:53 0.476
May 244:24:55 372:31:50 0.656
Jun 136:52:24 197:29:18 0.693

Observed time so far in 2025
- Total time of each institute is calculated by the following
    [All observation time in 2025] = [Observed time so far] + [Remaining time in the future]
    [Remaining time in the future] = [Clear sky fraction] x [Remaining night time (Sun alt. < -10°)]
    
    [GB observation time in 2025] = [Observed GB time so far] + [Remaining GB time in the future]
    [Remaining GB time in the future] = [Clear sky fraction] x [Remaining GB night time (Sun alt. < -10° & GB alt. > 22°)]
    
    [Non-GB observation time in 2025] = [All observation time in 2025] - [GB observation time in 2025]
    
    [OU, NASA, ABC time in 2025] = 0.24 x [Non-GB observation time in 2025]
    [SAAO time in 2025] = 0.28 x [Non-GB observation time in 2025]
    
- ALLSKY time is equally distributed to each institute
- ToO time is distributed to each institute based on input of observer of each date
- Clear sky fraction of (0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5, 0.5) is assumed for (Jan, ..., Dec) in the calculation of the remaining observation time
All
(hh:mm:ss) 		GB
(hh:mm:ss) 		Non-GB
(hh:mm:ss) 		SAAO
(hh:mm:ss) 		OU
(hh:mm:ss) 		NASA
(hh:mm:ss) 		ABC
(hh:mm:ss) 		CALIB
(hh:mm:ss)
Total 1874:25:28 967:40:29 906:44:59 253:53:23 217:37:11 217:37:11 217:37:11 150:53:06
Observed 858:41:25
(45.81%)		 487:35:50
(50.39%)		 371:05:35
(40.93%)		 60:40:49
(23.90%)		 87:52:05
(40.38%)		 170:01:46
(78.13%)		 52:30:54
(24.13%)		 150:53:06
(N/A)
Remaining 1015:44:03
(54.19%)		 480:04:39
(49.61%)		 535:39:24
(59.07%)		 193:12:34
(76.10%)		 129:45:06
(59.62%)		 47:35:25
(21.87%)		 165:06:17
(75.87%)		 00:00:00
(N/A)











Camera status (2025/06/16)



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